Low vacuum enhanced expansion of a supersonic arc plasma plume

Vacuum ◽  
2021 ◽  
pp. 110858
Author(s):  
Jia Shi ◽  
Sen-Hui Liu ◽  
Ji-Meng Li ◽  
Wen-Bo Chen ◽  
Wen-Ting He ◽  
...  
Keyword(s):  
1987 ◽  
Vol 98 ◽  
Author(s):  
Brent A. Detering ◽  
James A. Batdorf ◽  
Chien M. Wai

ABSTRACTPlasma flow field temperatures are determined in a nontransferred arc plasma using emission spectroscopy. This technique is then utilized to identify thermal decomposition and reduction products produced in the plasma plume when metal oxide particles are injected into the plasma arc. The processed particles are then studied using AAS, SEM, EDS and XRD to characterize the chemical changes that have occurred in the particles. A Fourier transform method is used to study changes in particle morphology.


1987 ◽  
Vol 98 ◽  
Author(s):  
D. Harris ◽  
M. Kelly

ABSTRACTInfrared video thermography was used to evaluate the plasma plume and particle streams created by dc plasma jets operating in air and spraying several types of materials. The temperatures of the plasma plume were measured with the aid of a graphite ‘witness.’ By using the thermography system in an 8khz line scan mode, we were able to obtain data relative to the average velocity of particle groups injected into the plasma. The effects of process parameters could be observed in real time using these methods, showing the potential for real time process control.


2015 ◽  
Vol 30 (2) ◽  
pp. 189
Author(s):  
LIU Shi-Xin ◽  
LI Xiao-Song ◽  
DENG Xiao-Qing ◽  
SUN Zhi-Guang ◽  
ZHU Ai-Min

Author(s):  
Milan Hrabovsky ◽  
M. Konrad ◽  
Vladimir Kopecky ◽  
J. Hlina ◽  
J. Benes ◽  
...  

Author(s):  
A. S. Anshakov ◽  
M. R. Predtechensky ◽  
V. S. Cherednichenko ◽  
O. M. Tukhto ◽  
E.K. Urbakh ◽  
...  
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